A reflector with a curved reflecting surface that forms part of a paraboloid (as opposed to, for example, a sphere)

The act of self-reflecting / The result of self-reflecting (e.g. a thought, statement)

Alternative form of ultrarefined

(grammar, linguistics) A deliberate, often authoritatively sanctioned or mandated change to spelling rules.

(medicine) A disorder with intense burning pain, one of two types of complex regional pain syndrome.

(geometry) In Euclidean geometry, an ordinary reflection not requiring that the reflection be performed using perpendiculars.

Alternative form of pseudoreferendum.

(grammar) An auxiliary grammatical construction in which the object of a clause is stated to be in the possession of the subject; usually as way to clarify, specify or emphasize the overall meaning of the statement.

plural of reflexive possessive